diff options
| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2017-10-09 10:30:13 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-10-10 12:30:16 -0700 |
| commit | c9c35995bcf812ee8136f634c25bc6ccc3021d4c (patch) | |
| tree | a27745367592357b7ff46ac3253d989f5a3e8129 /tools/bpf/bpftool/Documentation | |
| parent | bpf: move instruction printing into a separate file (diff) | |
| download | linux-dev-c9c35995bcf812ee8136f634c25bc6ccc3021d4c.tar.xz linux-dev-c9c35995bcf812ee8136f634c25bc6ccc3021d4c.zip | |
tools: bpftool: use the kernel's instruction printer
Compile the instruction printer from kernel/bpf and use it
for disassembling "translated" eBPF code.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/bpf/bpftool/Documentation')
| -rw-r--r-- | tools/bpf/bpftool/Documentation/bpftool-prog.rst | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/tools/bpf/bpftool/Documentation/bpftool-prog.rst b/tools/bpf/bpftool/Documentation/bpftool-prog.rst index 57fc4b9924ea..04d12f768f06 100644 --- a/tools/bpf/bpftool/Documentation/bpftool-prog.rst +++ b/tools/bpf/bpftool/Documentation/bpftool-prog.rst @@ -11,7 +11,7 @@ SYNOPSIS ======== | **bpftool** prog show [*PROG*] -| **bpftool** prog dump xlated *PROG* file *FILE* +| **bpftool** prog dump xlated *PROG* [file *FILE*] [opcodes] | **bpftool** prog dump jited *PROG* [file *FILE*] [opcodes] | **bpftool** prog pin *PROG* *FILE* | **bpftool** prog help @@ -28,9 +28,12 @@ DESCRIPTION Output will start with program ID followed by program type and zero or more named attributes (depending on kernel version). - **bpftool prog dump xlated** *PROG* **file** *FILE* - Dump eBPF instructions of the program from the kernel to a - file. + **bpftool prog dump xlated** *PROG* [**file** *FILE*] [**opcodes**] + Dump eBPF instructions of the program from the kernel. + If *FILE* is specified image will be written to a file, + otherwise it will be disassembled and printed to stdout. + + **opcodes** controls if raw opcodes will be printed. **bpftool prog dump jited** *PROG* [**file** *FILE*] [**opcodes**] Dump jited image (host machine code) of the program. |